Here's an SSP that I have had in a "VeryPending" folder. It is a 1988 Brooksville, Florida SSP -
1988 Brooksville SSP (unconfirmed)
The car pictured in the link does not have any agency-specific documentation tying that VIN to this car, but it was ID'd at some point as the VIN for this car. So the listing is marked as "unconfirmed", but there is no question that this VIN came factory equipped with the SSP option.
Below is a photo of a relatively new Charger from Brooksville PD. The graphics have not changed much.